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Active Contributor

Join Date: May 2007
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Ceramic Tile

01/25/2014 8:34 AM

Hi

how to manufacture high temprature resistant ceramic tiles

raghu

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Guru

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#1

Re: ceramic tile

01/25/2014 9:08 AM

using the appropriate ceramic.

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Guru
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#2

Re: ceramic tile

01/25/2014 9:50 AM

You have to use a kiln. A regular oven will make nice bread but it will not get hot enough.

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Guru

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#3

Re: Ceramic Tile

01/25/2014 2:10 PM

"Formation of Body Slip

The first and the foremost step in the manufacturing of ceramic tile floors is the formation of body slip. Body slip is formed by blending raw materials such as clay, feldspar, sand, dolomite, and quartz with 30% of water. After blending, it is grounded in a ball mill to get the body slip.

Spray Drying of Body Slip

After the formation of body slip, the material which will soon be made into ceramic tile floors is now put into a spray dryer and heated at high temperature. When the body slip is heated, it is transformed into powder which contains moisture of about 6%. The powder is then sent to presses to form bisque (body).

Production of the Bisque

The powder is then compacted into dies through a press that operates at a pressure of several hundred pounds per square foot. The result of the pressure is a clay body, or bisque. This early stage in the ceramic tile floors manufacturing process will account for their durability later on.

Drying of the Bisque

The bisque is now heated at high temperature by using natural gas. This process removes the moisture from the bisque. The strength and stability of the bisque (body of the ceramic tile floors) depend upon the raw materials and density.

Glazing Process

The glazing process enables the best possible results in color, weight, viscosity and density of the ceramic tile flooring. There are many ways of applying glazes to ceramic tile for flooring which includes silkscreen patterns, spray glazes, waterfall glazes, brushes, and roto screens, etc. These glazes enable a beautiful finish. The now glazed but unfired ceramic tile is called greenware.


Firing of the Greenware

The greenware formed is placed in a roller hearth kiln for firing. The firing process consists of high temperatures and pressure, temperatures reaching 2100 degree F over the course of a 45 minute period. During this process, the tile shrinks up to 15%.

There are two types of firing processes, resulting in two main categories of ceramic tile flooring:


a) Monocottura:

The production time of ceramic tile flooring can be reduced to a matter of hours by the process called �monocottura� (an Italian term meaning �single fired�). In this process, individual ceramic tiles are fired and glazed at the same time. It also produces a denser and more durable ceramic tile. This subset of ceramic tile features a flat back to allow an easier installation.


b) Bicottura:

A similar process called �Bicottura� (�double-fired�) breaks the firing process in two phases. The clay is fired once and then again with a glaze added to the top layer of the ceramic tile. In this process, the ceramic tile may be fired several times, and are generally a little less durable than monocottura ceramic tiles. Bicottura tiles should only be applied to indoor locations, mostly as wall tiles and backsplashes because of their softer body and their glaze.


The Finished Tile

It takes about one hour to convert raw material into finished ceramic tiles. However, the time will vary depending on the machinery and material. After all the processes, the finished ceramic tile is categorized by color/shade, size and quality. The tiles are than sorted, palletized and packed with the help of machines."

http://www.builddirect.com/Porcelain-Tile/Ceramic-Tile-Articles/The_Ceramic_Tile_Manufacturing_Process_Part_2.aspx

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Guru

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#4

Re: Ceramic Tile

01/25/2014 4:10 PM

just use these, they use to fall off the shuttle all the time

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Guru
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#5
In reply to #4

Re: Ceramic Tile

01/25/2014 4:38 PM

They don't fall off any more. [Sigh]

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Active Contributor

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#6

Re: Ceramic Tile

01/26/2014 8:05 AM

Hi

I thank one and all for your reply.

regards

raghu

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